/*
 * Copyright 2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.shell.result;

import org.jline.terminal.Terminal;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Lazy;
import org.springframework.shell.ResultHandler;

/**
 * Base class for ResultHandlers that rely on JLine's {@link Terminal}.
 *
 * @author Eric Bottard
 */
public abstract class TerminalAwareResultHandler<T> implements ResultHandler<T> {
	protected Terminal terminal;

	@Autowired @Lazy
	public void setTerminal(Terminal terminal) {
		this.terminal = terminal;
	}

	@Override
	public final void handleResult(T result) {
		doHandleResult(result);
		terminal.writer().flush();
	}

	protected abstract void doHandleResult(T result);
}
